1.

Can a vector be zeroif any of itscomponents is not zero?

Answer»

Solution :In TERMS of componentsin three dimestions,
`vecA = hati A_(x) + hatj A_(y) + HATK A_(Z)`with `A = sqrt(A_(x)^(2)+ A_(y)^(2) + A_(z)^(2))`
so if any of `A_(x),A_(y) and A_(z)`is not zero(or NULL)all itscomponentsmustvanish.


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